Siemens 6ES5316-8MA12 IM316 Interface Module is an SIMATIC S5 expansion interface that connects up to three expansion racks to a S5-100U, ET100U, or ET200U controller. As the IM316 interface module, it serves as the bridge between the central CPU and distributed I/O across multiple racks, enabling modular expansion in legacy S5 installations. Key specifications: part number 6ES5316-8MA12; IM316 Interface Module for SIMATIC S5; supports up to 3 expansion racks; compatible with S5-100U, ET100U, ET200U; weight 0.31 lb; discontinued by the manufacturer.
